
<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta http-equiv='Content-Type' content='text/html; charset=utf-8' />
    <title></title>
    <meta name="keywords" content=""/>
    <meta name="description" content=""/>
    <style type="text/css">
        body {
            background-size: cover;
            min-width: 1000px;
            background-image:url(http://pic.90sjimg.com/back_pic/qk/back_origin_pic/00/03/62/aee00cdd4b4106f7bd7b761e85219bce.jpg);
            font-size:14px;
        }
        #main {
            width:360px;
            height:320px;
            background:#fff;
            border:1px solid #ddd;
            position:absolute;
            top:50%;
            left:50%;
            margin-left:-180px;
            margin-top:-160px;
            background-size: cover;
            background-image:url(https://s1.ax1x.com/2020/07/31/alzGMn.jpg);
        }
        #main .title {
            height: 48px;
            line-height: 48px;
            color:#333;
            font-size:16px;
            font-weight:bold;
            text-indent:30px;
            border-bottom:1px dashed #eee;
        }
        #main form {
            width:300px;
            margin:20px 0 0 40px;
        }
        #main form label {
            margin:20px 0 0 40px;
            display:block;
        }
        #main form label input.text {
            width:200px;
            height:25px;
        }
        #main form label input.submit {
            width:200px;
            display:block;
            height:35px;
            cursor:pointer;
            margin:20px 0 0 2px;
        }
    </style>
</head>
<body>
<div id="main">
    <div class="title">欢迎使用，请登录</div>
    <form action="" onsubmit="return enter()">

    </form>
</div>



</body>
</html>


